From the Biological and Environmental Sciences Department, Faculty of Science, Beirut Arab University, Beirut, Lebanon.
Received for publication March 4, 2012; accepted October 16, 2012.
Reprints: Rana J. Al Wafai, PhD, Biological and Environmental Sciences Department, Faculty of Science, Beirut Arab University, Beirut 1107 2809, Lebanon (e-mail: [email protected]; [email protected]).
The author declares no conflict of interest.
doi: 10.1097/MPA.0b013e318279ac1c